Soviet Says Third Summit Day Possible, But Others Disagree With AM-Sumit Rdp Bjt

ROXINNE ERVASTI

Nov. 19, 1985

GENEVA (AP) _ President Reagan and Soviet leader Mikhail Gorbachev are ''very likely'' to continue their summit meeting into Thursday, Gorbachev's chief spokesman indicated Tuesday. But other officials said no decision had been made to extend the talks.

Leonid Zamyatin, the spokesman, told a morning news conference that the leaders' talks might extend into a third day.

The answer came in response to a question about whether Gorbachev would brief his Warsaw Pact allies on the summit before returning to Moscow. Reagan plans a Brussels stopover Thursday to brief NATO allies before returning to the United States, and there have been rumors that Gorbachev would summon the Warsaw Pact chiefs for a meeting in Prague on his way back to Moscow.

''At the moment, we're in Geneva,'' Zamyatin said. ''So what's planned first here is that tomorrow (Wednesday) we shall continue the meeting, and very likely to the 21st we'll go on here, in Geneva.'' He did not elaborate.

But Vladimir Lomeiko, the Soviet Foreign Ministry spokesman, said at an evening briefing that it had been agreed that the meeting would last ''from Nov. 19 to 20th and these dates will be respected.'' There was no explanation for the conflicting statements.

White House spokesman Larry Speakes said there was the possibility of a ''public reporting session'' on Thursday morning. The time could be taken up by the signing of any joint agreements, or the leaders could simply use the opportunity to end the news blackout with their views of the first superpower summit in six years.

But Speakes indicated that did not mean the talks actually would be extended.

In Washington, there was some gossip circulating on Capitol Hill to the effect that a Thursday session might take place, but it could not be substantiated.